Indigenous groups in Canada use radar to identify possible graves—more than 1,800—at former schools, "confirming an open secret."

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      Indigenous groups in Canada use radar to identify possible graves—more than 1,800—at former schools, "confirming an open secret."
    
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<p><a href="https://undark.org/2022/03/28/how-radar-is-helping-track-down-lost-indigenous-grave-sites/">&#x021A9;&#xFE0E; Undark</a></p>